20100522640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{911}}^1\times {\mathrm{25073}}^1$

素因数の和:26008

約数の個数: 80

約数和(自身を含む): 51040233216

約数和(自身を除く): 30939710576

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 911, 1822, 3644, 4555, 7288, 9110, 10021, 14576, 18220, 20042, 25073, 36440, 40084, 50105, 50146, 72880, 80168, 100210, 100292, 125365, 160336, 200420, 200584, 250730, 275803, 400840, 401168, 501460, 551606, 801680, 1002920, 1103212, 1379015, 2005840, 2206424, 2758030, 4412848, 5516060, 11032120, 22064240, 22841503, 45683006, 91366012, 114207515, 182732024, 228415030, 251256533, 365464048, 456830060, 502513066, 913660120, 1005026132, 1256282665, 1827320240, 2010052264, 2512565330, 4020104528, 5025130660, 10050261320, 20100522640]

約数ペア:

[(1, 20100522640), (2, 10050261320), (4, 5025130660), (5, 4020104528), (8, 2512565330), (10, 2010052264), (11, 1827320240), (16, 1256282665), (20, 1005026132), (22, 913660120), (40, 502513066), (44, 456830060), (55, 365464048), (80, 251256533), (88, 228415030), (110, 182732024), (176, 114207515), (220, 91366012), (440, 45683006), (880, 22841503), (911, 22064240), (1822, 11032120), (3644, 5516060), (4555, 4412848), (7288, 2758030), (9110, 2206424), (10021, 2005840), (14576, 1379015), (18220, 1103212), (20042, 1002920), (25073, 801680), (36440, 551606), (40084, 501460), (50105, 401168), (50146, 400840), (72880, 275803), (80168, 250730), (100210, 200584), (100292, 200420), (125365, 160336)]